export declare abstract class DateTimeFormatter {
    abstract parseDate(inp: string): Date;
    abstract parseTime(inp: string): Date;
    abstract parseDateTime(inp: string): Date;
    abstract formatDate(date: Date): string;
    abstract formatTime(date: Date): string;
    abstract formatDateTime(date: Date): string;
}
export interface IsoFormatterOptions {
    defaultTimeZone?: string | null;
}
export declare class IsoFormatter extends DateTimeFormatter {
    static readonly TZ_REGEXP: RegExp;
    readonly defaultTimeZone?: string | null;
    constructor(options?: IsoFormatterOptions);
    formatDate(date: Date): string;
    formatDateTime(date: Date): string;
    formatTime(date: Date): string;
    parseDate(inp: string): Date;
    parseDateTime(inp: string): Date;
    parseTime(inp: string): Date;
    private prepareTimeInput;
    private static hasTimeZone;
}